Conversion from Microstation to Rhino3D is not supported yet :(

Microstation is a CAD software platform for 2D and 3D design and drafting, created by Bentley Systems. Its geometric kernel is Parasolid. It is widely used in the architectural and engineering industries and allows generating 2D/3D vector graphics objects and elements and includes BIM features.

Rhinoceros (typically abbreviated Rhino, or Rhino3D) is a commercial 3D computer graphics and computer-aided design (CAD) application software developed by Robert McNeel & Associates. It is used in industries including architecture, industrial and product design, in multimedia and graphic design and runs on Microsoft Windows and OS X. Rhino uses Grasshopper, a visual scripting language add-on, developed by Robert McNeel & Associates.

Rhino is based on the NURBS mathematical model, so it focuses on producing precise representations of curves and freedom surfaces. It allows users to create, edit, analyse, and visualize NURBS curves, surfaces, solid bodies, point clouds and polymeshes.